Classic rebound effect. Same thing for cars. > Contrary to popular belief, the average car is not in fact that much more fuel-efficient than older cars. Still,

Classic rebound effect. Same thing for cars. > Contrary to popular belief, the average car is not in fact that much more fuel-efficient than older cars. Still, to this day, the average vehicle has a range of between 20 and 30 miles per gallon; a stat which was very similar in the 1920s. But, why is this? Well, cars are a whole lot bigger.